Update PR template

Signed-off-by: Kai Tillman <ktillman@datawire.io>

.github/pull_request_template.md

@@ -12,6 +12,6 @@ A few sentences describing the overall goals of the pull request's commits.
  - [ ] I made sure to update `./CHANGELOG.yml`.
  - [ ] I made sure to add any docs changes required for my change (including release notes).
  - [ ] My change is adequately tested.
- - [ ] I updated `DEVELOPING.md` with any special dev tricks I had to use to work on this code efficiently.
+ - [ ] I updated `CONTRIBUTING.md` with any special dev tricks I had to use to work on this code efficiently.
  - [ ] I updated `TELEMETRY.md` if I added, changed, or removed a metric name.
  - [ ] Once my PR is ready to have integration tests ran, I posted the PR in #telepresence-dev in the datawire-oss slack so that the "ok to test" label can be applied.